If you want to open a folder of bookmarks in tabs, Firefox normally replaces all of your current tabs—but reader Raghav writes in with a quick configuration trick to fix that behavior.

To make Firefox append the new tabs to the ones you already have open, you'll want to head over to about:config, filter for the browser.tabs.LoadFolderAndReplace key, and then double-click on it to change the value to false. The change should take effect immediately, no restarting needed.